CN115556388A

CN115556388A - Automatic manufacturing system and preparation method of wind driven generator blade web core material

Info

Publication number: CN115556388A
Application number: CN202211218478.2A
Authority: CN
Inventors: 吴苏杭; 时剑; 李顺
Original assignee: Suzhou Hengchuan Photovoltaic Technology Co ltd
Current assignee: Suzhou Hengchuan Photovoltaic Technology Co ltd
Priority date: 2022-10-06
Filing date: 2022-10-06
Publication date: 2023-01-03
Anticipated expiration: 2042-10-06
Also published as: CN115556388B

Abstract

The invention discloses an automatic manufacturing system of a wind driven generator blade web core material, which comprises the following steps: a plate extruder for extruding and molding the PVC or PET material into a continuous plate-shaped core material; the continuous plate-shaped core material is conveyed and cut under the control of the controller through the conveying equipment to obtain a single core material; the controller is electrically connected with the conveying equipment; under the control of the controller, slotting by using slotting equipment to open a groove on the surface of the single core material; the device comprises a core material and glass fiber cloth, and is characterized by further comprising a clamping and cloth sticking device for clamping and feeding the core material and the glass fiber cloth, wherein the clamping and cloth sticking device heats the glass fiber cloth overlapped on the core material to melt viscose solidified on the glass fiber cloth, the glass fiber cloth is bonded and fixed with the core material through the melted viscose, and the clamping and cloth sticking device heats the glass fiber cloth and simultaneously generates leveling acting force on the attached glass fiber cloth. The invention can flatten the glass fiber cloth adhered on the surface of the core material.

Description

Automatic manufacturing system and preparation method of wind driven generator blade web core material

Technical Field

The invention relates to the field of wind driven generator blades, in particular to an automatic manufacturing system and a preparation method of a wind driven generator blade web core material.

Background

The blade is a key part for capturing wind energy of the wind turbine, is a force source of the wind turbine and a main bearing part, and plays a key role in the safe operation of the whole wind turbine. With the development of wind power technology, the capacity of a single machine is increased, blades are longer and longer, and the influence of webs on the performance of the blades is more and more obvious. The web plate is made of three materials, namely basha wood, PET (polyethylene terephthalate) and PVC (polyvinyl chloride) at present.

CN111958711A discloses a preparation method of a wind driven generator blade web balsa wood core material, which comprises the steps of pretreatment and post-pretreatment of balsa wood, and the pretreatment is sequentially performed with shallow slot forming, punching, cloth pasting, deep slot forming, finished product inspection, template manufacturing, line drawing, edge cutting, mark writing, chamfering, IPQC process inspection, plate dividing, dehumidification, paving inspection, packaging and warehousing.

The cloth pasting operation comprises pasting glass fiber cloth on one surface of the core material, wherein the glass fiber cloth covers the whole surface of the core material, and the glass fiber needs to be free of wrinkling, bubbling and breaking after cloth pasting. Although the above-described method is directed to using balsa as the core material, the process of applying the core material obtained by extrusion using PET and PVC materials is the same as that of balsa.

The specific process of the cloth pasting comprises the steps of firstly coating glue on the surface of the core material, manually pasting the cut glass fiber cloth on the glue coating surface, flattening the glass fiber cloth by using a pressing plate, then sending the glass fiber cloth into a drying oven for drying to solidify the glue, and further fixing the glass fiber cloth and the core material. However, when manual gluing is adopted, the situation that gluing is not uniform usually occurs, unevenness occurs after drying, the glass fiber cloth is pressed and flattened by the pressing plate, and the flatness cannot be guaranteed through visual observation.

Disclosure of Invention

The invention provides an automatic manufacturing system and a preparation method of a wind driven generator blade web core material, which can flatten glass fiber cloth attached to the surface of the core material.

An automated wind turbine blade web core manufacturing system comprising:

a plate extruder, which extrudes and forms PVC or PET material into a continuous plate-shaped core material;

the continuous plate-shaped core material is conveyed and cut under the control of the controller through the conveying equipment to obtain a single core material;

the controller is electrically connected with the conveying equipment;

the slotting equipment is electrically connected with the controller, and under the control of the controller, slotting is carried out by adopting the slotting equipment to open a groove on the surface of the single core material;

the device comprises a core material and glass fiber cloth, and is characterized by further comprising clamping and cloth pasting equipment for clamping and conveying the core material and the glass fiber cloth, wherein the clamping and cloth pasting equipment heats the glass fiber cloth stacked on the core material to melt viscose solidified on the glass fiber cloth, the glass fiber cloth is bonded and fixed with the core material through the melted viscose, and the clamping and cloth pasting equipment heats the glass fiber cloth and simultaneously generates leveling acting force on the bonded glass fiber cloth.

The preparation method of the wind driven generator blade web core material comprises the following steps:

s1, extruding and molding a PVC or PET material into a continuous plate-shaped core material by using a plate extruder;

s2, conveying and cutting the continuous plate-shaped core material under the control of a controller through conveying equipment to obtain a single core material;

s3, under the control of the controller, slotting by using slotting equipment to open a groove on the surface of the single core material;

and S4, after the groove is formed in the core material, sending the core material and the glass fiber cloth which are overlapped together into an input end of a clamping and conveying cloth pasting device, conveying the glass fiber cloth and the core material by the clamping and conveying cloth pasting device, wherein one surface, matched with the core material, of the glass fiber cloth has solidified viscose, heating the glass fiber cloth by the clamping and conveying cloth pasting device in the clamping and conveying process of the glass fiber cloth by the clamping and conveying cloth pasting device, melting the solidified viscose, bonding and fixing the glass fiber cloth with the core material through the melted viscose, and simultaneously generating leveling acting force on the attached glass fiber cloth by the clamping and conveying cloth pasting device when heating the glass fiber cloth.

According to the invention, the glass fiber cloth is heated by the clamping cloth pasting equipment, so that the solidified viscose is melted, and the glass fiber cloth generates leveling acting force by the clamping cloth pasting equipment, so that the glass fiber cloth and the core material are flat and firm after being pasted.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Fig. 2 is a front view of the conveying apparatus of the present invention.

Fig. 3 is an enlarged view of the cutting guide unit in the present invention.

Fig. 4 is a schematic view of the cutting unit and the cutting blade assembly of the present invention.

Fig. 5 is a perspective view of the first slide rail of the present invention.

Fig. 6 is a front view of the drawing unit in the present invention.

Fig. 7 is a top view of the traction unit in the present invention.

Fig. 8 is a schematic view illustrating a core material being cut by the cutting blade assembly according to the present invention.

Fig. 9 is a schematic view of the cutting guide unit in the home position in the present invention.

Fig. 10 is a schematic view of the cutting guide unit of the present invention moving from the home position to the first position.

Fig. 11 is a front view of the fully automatic slotting device in the present invention.

Fig. 12 is a top view of the fully automatic grooving apparatus of the present invention with parts hidden.

Fig. 13 is a schematic view of the moving frame and the lifting and lowering mechanism of fig. 11 in cooperation.

FIG. 14 is a schematic view of the pinch and applicator device of the present invention.

FIG. 15 is a schematic view of the pinch cloth attaching device of the present invention discharging after completing cloth attaching.

Reference numbers in the drawings: an extrusion unit A, a conveying unit B, a controller C, a traction unit D, a cutting guide unit E, a core material W, a first position Q, a first slide rail seat 1, a first inductor 1-1, a second inductor 1-2, a cutting unit 2, a sliding cutting assembly 2-1, a first induction part 2-2, a second induction part 2-3, a cutting knife seat 2-1-1, a first slide rail 2-1-2, a longitudinal driver 2-1-3, a motor 2-4, a rack 2-5, a gear 2-6, a guide unit 3, a first sliding plate 4-1, the cutting device comprises a first mounting plate 4-2, a second mounting plate 4-3, a support rod 4-4, a first transmission assembly 4-5, a first transmission shaft 4-6, a first bearing seat 4-7, a cutting blade 4-8, a first driver 4-9, a U-shaped frame 4-10, a nut 4-11, a box body 5, a transmission belt 5-1, a second transmission part 5-2, a third transmission part 5-3, an air extractor 5-4, an air vent 5-5, a photoelectric sensor 5-6, a rotating speed sensor 5-7, an interval L, a first interval L1 and a second interval L2.

The automatic grooving machine comprises a workbench G, a moving frame H, a lifting grooving device I, a first detection assembly J, a centering clamping mechanism K, an initial position detection assembly P, a core material X, a workbench body 10, a first guide rail 11, a translation mechanism 12, a first supporting plate 13, a frame body 20, a belt transmission mechanism 21, a second guide rail 22, a sliding plate 23, a lifting driving part 24, a grooving driver 25 and a grooving cutter 26.

The device comprises a frame 41, a fixed frame 41a, a movable frame 41b, a first pinch roll 42, a second pinch roll 43, a heating component 44, a pinch drive 45, a first guide frame 46, a second guide frame 47, a material placing frame 48, a swing oil cylinder 49 and a pinch roll lifting drive 50.

Detailed Description

As shown in fig. 1 to 15, the automatic manufacturing system of the wind turbine blade web core material of the present invention includes a sheet extruder a, a conveying device, a controller C, a grooving device, and a pinch cloth-attaching device, and each part and the relationship between the parts will be described in detail below.

Referring to fig. 1, a plate extruder a, which is a prior art and is described herein in detail, extrudes PVC or PET material to form a continuous plate-shaped core material. The continuous plate-shaped core material is conveyed and cut by conveying equipment under the control of a controller C to obtain a single core material W, and the controller C is electrically connected with the conveying equipment.

As shown in fig. 2 to 10, the conveying apparatus includes a conveying unit B for receiving and conveying the core material W, a controller C electrically connected to the conveying unit B, a cutting guide unit E, and a drawing unit D; the traction unit D is electrically connected with the controller C and is used for drawing the core material W to enable the core material W to be in a tensioned state.

As shown in fig. 2 to 10, a cutting guide unit E is located between a conveying unit B and a drawing unit D, the cutting guide unit E is electrically connected to a controller C, and a head portion of the core W passes through the cutting guide unit E and reaches the drawing unit D, or the controller C controls the cutting guide unit E to move from a start position at a first speed, and guides the head portion of the core W engaged with the cutting guide unit E to the drawing unit D, and the controller C controls the cutting guide unit E to move at a second speed, which is the same as a speed at which the drawing unit D draws the core W, and cuts the core W, which is brought into a tensioned state by the drawing unit D, while moving.

As shown in fig. 2 to 10, in the present embodiment, when the PET or PVC material is continuously extruded from the extrusion unit a to form the continuous sheet-shaped core material W, the core material W is dropped onto the conveying unit B, and the conveying unit B not only conveys the core material W but also actively cools the core material W. And then after the core material W is conveyed to the tail end of the conveying unit B by the conveying unit B, the cutting guide unit E receives the head of the core material W, the core material W is supported by the cutting guide unit E, the core material W continues to move along the cutting guide unit E under the driving action of the conveying unit B, the head of the core material W is guided to the traction unit D through the cutting guide unit E, then the traction unit D draws the core material W, the traction speed of the traction unit D on the core material W is greater than the conveying speed of the conveying unit B, so that the core material W is in a tensioned state, and finally the core material W is cut through the cutting guide unit E.

As shown in fig. 2 to 10, if there is no mechanism or means for supporting the core material W between the conveying unit B and the pulling unit D due to the fact that the distance between the conveying unit B and the pulling unit D is large and the core material W itself has gravity and rigidity, the core material W may be bent due to insufficient rigidity, and the head of the core material W may not smoothly reach the pulling unit D. In contrast, in the embodiment, the cutting guide unit E is located between the conveying unit B and the pulling unit D, and supports and guides the core material W by using the cutting guide unit E, so as to overcome the bending of the core material W due to insufficient rigidity, so that the head of the core material W can smoothly reach the pulling unit D, and the cutting guide unit E continuously provides a supporting force for the core material W moving along the cutting guide unit E in the process of pulling the core material by using the pulling unit D, so that the core material W is prevented from being bent to block the movement of the core material W, that is, the movement speed of the core material W is ensured to be stable.

Two ways of guiding the core material are provided above, as shown in fig. 9, the first is: the head of the core material W passes through the cutting guide unit E and reaches the drawing unit D. In this manner, when the head of the core W reaches the pulling unit D, the cutting guide unit E is kept stationary.

For example, a first spacing L1 between the conveying unit B and the drawing unit D is 1500mm, a spacing between the end of the cutting guide unit E receiving the core material and the output end of the conveying unit B is less than 100mm, and a second spacing L2 between the cutting guide unit E and the drawing unit D is 700mm, that is, in this way, there is a blank interval of 700mm between the cutting guide unit E and the drawing unit D, if the core material W is basically set after cooling due to the problem of formulation, the rigidity of the core material W is ensured to pass through the second spacing L2 and reach the drawing unit D, and at this time, the cutting guide unit E does not need to move to fill up the support of the core material W.

As shown in fig. 10, the second is: the controller C controls the cutting guide unit E to move from the start position at a first speed, and guides the head of the core material W engaged with the cutting guide unit E to the drawing unit D. In this method, since the rigidity of the core W itself is insufficient, the movement of the core W needs to be assisted by moving the cutting guide E. For example, a first interval L1 between the conveying unit B and the drawing unit D is 1500mm, a second interval L2 between the cutting guide unit E and the drawing unit D is 700mm, and when the head of the core W is located inside the cutting guide unit E or has passed through the cutting guide unit E, at this time, the controller C controls the cutting guide unit E to move from the start position at a first speed, the cutting guide unit E moves to a first position Q, the interval L between the first position Q and the drawing unit D is less than or equal to 500mm, that is, the rigidity of the core W can smoothly reach the drawing unit D while passing through the interval L.

In the second mode, the cutting guide unit E reaches the first position Q after moving at the first speed, and the controller C controls the cutting guide unit E to stop at the first position Q, where the cutting guide unit E and the drawing unit D are spaced apart by the distance L. When the cutting guide unit E stops at the first position Q, the distances between the cutting guide unit E and the conveying unit B and the traction unit D are smaller, and the cutting guide unit E can provide better support for the core material W.

When the cutting guide unit E stops at the first position Q and the head of the core material W reaches the traction unit D, the core material W is dragged and moved by the traction unit D, and after the length of the core material W passing through the traction unit D reaches the requirement, the cutting guide unit E cuts the core material W.

With the second mode described above, the cutting guide unit E reaches the first position Q after moving at the first speed before cutting the core material W, and the controller D controls the cutting guide unit E to stop at the first position Q with the space L therebetween. And the cutting guide unit E takes the first position as the cutting starting position of the core material W, and after the cutting guide unit E moves to the traction unit D from the first position at the second speed and finishes cutting the core material W, a third distance is reserved between the cutting guide unit E and the traction unit D. This provides a sufficient distance for the movement of the cutting guide unit E when the subsequent cutting guide unit E cuts the core material W.

As shown in fig. 10, if the interval L is 400mm, the length of the core W cut is 5 m, the width of the core W is 2 m, the speed of the core W pulled by the pulling unit D is 5cm/s, and the cutting speed of the cutting guide unit E is 40cm/s at the first position Q, the time required to cut the core W2 m wide is 5s, the cutting guide unit E moves 25cm, i.e., 250mm, to the position of the pulling unit D after cutting, and the third interval between the cutting guide unit E and the pulling unit D is 150mm, there is sufficient space so that the cutting guide unit E does not cut the pulling unit D.

The cutting guide unit E is entirely returned to the first position Q after each cutting. Since the core material W is continuously conveyed, after cutting, the head portion of the subsequent core material W is still loaded on the cutting guide unit E and continues to be guided by the cutting guide unit E, i.e., continues to move along the cutting guide unit E. As a modification, the cutting guide unit E may also be retracted to the original position.

As shown in fig. 2 to 10, the cutting guide unit E includes a first rail base 1, a cutting unit 2 for cutting the core material W, and a guide unit 3, the cutting unit 2 is slidably engaged with the first rail base 1, at least a portion of the guide unit 3 is located in the cutting unit 2 and fixed to the cutting unit 2, and the core material W output from the conveying unit B moves along the guide unit 3 and then reaches the drawing unit D.

As shown in fig. 2 to 10, in the present embodiment, after the core material W is conveyed to the cutting guide unit E by the conveying unit B, the core material W is first supported and guided onto the drawing unit D by the guide unit 3, and then the core material W reaches a length sufficient for cutting, the cutting unit 2 moves along the first rail base 1 to cut the core material W, and at this time, the speed of the cutting unit 2 moving along the first rail base 1 is the same as the speed of the drawing unit D drawing the core material W.

As shown in fig. 2 to 10, in the present embodiment, the guide unit 3 is a roller frame guide or a plate-shaped member, and preferably, the guide unit 3 is a roller frame guide, and when the plate-shaped member is used, the plate-shaped member is made of teflon plate, which has an advantage of low friction coefficient, so that the friction force of the core material W is reduced when the guide unit 3 moves, so that the core material W on the guide unit 3 is pulled by the pulling unit D.

As shown in fig. 2 to 10, the first slide rail seat 1 includes a first sensor 1-1 and a second sensor 1-2, the first sensor 1-1 is located at one end of the first slide rail seat 1, and the second sensor 1-2 is located at the other end of the first slide rail seat 1. The cutting unit 2 comprises a sliding cutting assembly 2-1, a first sensing part 2-2 and a second sensing part 2-3, wherein the first sensing part 2-2 is located at one end of the sliding cutting assembly 2-1, and the second sensing part 2-3 is located at the other end of the sliding cutting assembly 2-1. The first sensor 1-1 is matched with the first sensing part 2-2, and the second sensor 1-2 is matched with the second sensing part 2-2, so that the sliding stroke of the sliding cutting assembly 2-1 along the first sliding rail seat 1 is limited between the first sensor 1-1 and the second sensor 1-2.

As shown in fig. 2 to 10, in the present embodiment, the maximum sliding distance of the sliding cutting assembly 2-1 along the first slide rail seat 1 is limited by the first sensor 1-1, the second sensor 1-2, the first sensing portion 2-2, and the second sensing portion 2-3, when the first sensing portion 2-2 senses the first sensor 1-1, the sliding cutting assembly 2-1 is located at the left end of the first slide rail seat 1, and when the second sensing portion 2-3 senses the second sensor 1-2, the sliding cutting assembly 2-1 is located at the right end of the first slide rail seat 1, and the distance from the first sensor 1-1 to the second sensor 1-2 is the limit distance for the sliding cutting assembly 2-1 to slide on the first slide rail seat 1.

Referring to fig. 2 to 10, the sliding cutting assembly 2-1 includes a cutting blade base 2-1-1, a first slide rail 2-1-2, a longitudinal driver 2-1-3, and a cutting blade assembly, wherein the first slide rail 2-1-2 is disposed along the cutting blade base 2-1-1 in the longitudinal direction, the longitudinal driver 2-1-3 is disposed at one end of the cutting blade base 2-1-1, the longitudinal driver 2-1-3 is connected to the cutting blade assembly, and the cutting blade assembly is slidably engaged with the first slide rail 2-1-2. The longitudinal driver 2-1-3 comprises a motor and a screw rod mechanism, the motor is connected with a screw rod in the screw rod mechanism, a nut in the screw rod mechanism is fixed with the cutting knife assembly, when the motor works, the motor drives the screw rod to rotate, and the screw rod drives the nut to move linearly, so that the cutting knife assembly fixed with the nut slides longitudinally along the first slide rail 2-1-2.

As shown in fig. 2 to 10, the sliding cutting assembly 2-1 is in sliding fit with the first sliding rail seat 1, the sliding cutting assembly 2-1 further comprises a driving motor 2-4, a rack 2-5 and a gear 2-6, the driving motor 2-4 is fixed with the cutting tool seat 2-1-1, the output end of the driving motor 2-4 is fixed with the gear 2-6, the rack 2-5 is fixed on the first sliding rail seat 1, and the rack 2-5 is meshed with the gear 2-6. When the driving motor 2-4 works, the driving motor 2-4 drives the gear 2-6 to rotate, and the gear 2-6 drives the driving motor 2-4 and the cutting knife holder 2-1-1 to move linearly along the rack 2-5.

As shown in fig. 2 to 10, the cutting blade assembly includes a first sliding plate 4-1, a first mounting plate 4-2, a second mounting plate 4-3, a supporting rod 4-4, a first transmission assembly 4-5, a first transmission shaft 4-6, a first bearing block 4-7, a cutting blade 4-8, a first driver 4-9, and an adjusting bracket for adjusting the position of the cutting blade 4-8, and the relationship between the parts in the cutting blade assembly will be described in detail below.

Referring to fig. 2 to 10, a first sliding plate 4-1 is disposed at one side of a cutter holder 2-1-1 and slidably engaged with a first sliding rail 2-1-2, one end of a first mounting plate 4-2 is hinged to one end of the first sliding plate 4-1, the other end of the first mounting plate 4-2 extends to the other side of the cutter holder 2-1-1, one end of a second mounting plate 4-3 is hinged to the other end of the first sliding plate 4-1, the other end of the first mounting plate 4-2 extends to the other side of the cutter holder 2-1-1, an adjustment bracket and at least a portion of a support rod 4-4 are disposed between the first mounting plate 4-2 and the second mounting plate 4-3, one end of the adjustment bracket is hinged to the first mounting plate 4-2, the other end of the adjustment bracket is connected to one end of the support rod 4-4, and the other end of the support rod 4-4 is hinged to the second mounting plate 4-3.

Referring to fig. 2 to 10, a first bearing block 4-7 is fixed on a second mounting plate 4-3, a first transmission shaft 4-6 is matched with the first bearing block 4-7, a first transmission assembly 4-5 is respectively matched with the first transmission shaft 4-6 and a first driver 4-9, the first driver 4-9 is mounted on the first mounting plate 4-2, and a cutting blade 4-8 is mounted on the first transmission shaft 4-6. The first driver 4-9 adopts a motor, the first transmission component 4-5 is a belt transmission mechanism or a chain transmission mechanism, the power output by the first driver 4-9 is transmitted to the first transmission shaft 4-6 through the first transmission component 4-5, and then the first transmission shaft 4-6 drives the cutting blade 4-8 to rotate.

Referring to fig. 2 to 10, the adjusting bracket comprises a U-shaped bracket 4-10 and two adjusting nuts 4-11, the U-shaped bracket 4-10 is hinged with the first mounting plate 4-2, after one end of the supporting rod 4-4 passes through the U-shaped bracket 4-10, the two adjusting nuts 4-11 are respectively positioned at two sides of the U-shaped bracket 4-10 and are in threaded connection with the supporting rod 4-4 to clamp the supporting rod 4-4 on the U-shaped bracket 4-10.

As shown in fig. 2 to 10, the two nuts 4-11 are rotated to position the two nuts 4-11 at different positions of the support bar 4-4, so that the height between the support bar 4-4 and the U-shaped frame 4-10 is adjusted, thereby rotating the second mounting plate 4-3 to change the position of the cutting blade 4-8.

As shown in fig. 2 to 10, when the thickness of the core material W is too thick or too thin to allow the cutting blades 4 to 8 to contact the core material W, the positions of the cutting blades 4 to 8 on the second mounting plate 4 to 3 may be adjusted by adjusting the support rods 4 to 4 such that the interval between the first mounting plate 4 to 2 and the second mounting plate 4 to 3 is larger or smaller, thereby cutting the core material W of different thicknesses.

As shown in fig. 2 to 10, the traction unit D includes a box 5, a conveyor 5-1, a second transmission part 5-2, a third transmission part 5-3, and an air extractor 5-4, wherein the second transmission part 5-2 and the third transmission part 5-3 preferably use transmission rollers, the second transmission part 5-2 is rotatably mounted at one end of the box 5, the third transmission part 5-3 is rotatably mounted at the other end of the box 5, the conveyor 5-1, the second transmission part 5-2, and the third transmission part 5-3 cooperate to form a belt transmission mechanism, the air extractor 5-4 is mounted on a side surface of the box 5, a vent 5-5 is arranged on a surface of the conveyor 5-1, the air extractor 5-4 is connected with the box 5, and when the air extractor 5-4 extracts air, air flows through the vent 5-5 and then generates an adsorption force on the core W to generate a traction force on the core W.

As shown in fig. 2 to 10, after the core material W reaches the traction unit D, the core material W is sucked onto the conveyor belt 5-1 by sucking air from the air suction machine 5-4, and the conveyor belt 5-1 is driven by the second transmission part 5-2 and the third transmission part 5-3 to move along the transverse direction of the box 5, so that the whole traction unit D generates traction force on the core material W, and the traction unit D pulls the core material W to move at a speed higher than the moving speed of the core material W on the conveying unit B, so that the core material W is under tension under the traction action of the traction unit D, and the tension makes the cutting unit 2 cut the core material W more easily, the formed cut is smoother, and the straightness of the cut is ensured within a required tolerance range.

As shown in fig. 2 to 10, the drawing unit D further includes a photo sensor 5-6 and a rotation speed sensor 5-7, the photo sensor 5-6 and the rotation speed sensor 5-7 are electrically connected to the controller C, respectively, the photo sensor 5-6 is installed on the casing 5 and located at one side of the conveyor belt 5-1, the photo sensor 5-6 detects whether the head of the core material W has reached the drawing unit D, the rotation speed sensor 5-7 is installed at one side of the second transmission member 5-2, the rotation speed sensor 5-7 is used to detect the rotation speed of the second transmission member 5-2, and the photo sensor 5-6 and the rotation speed sensor 5-7 provide detection signals to the controller C, respectively.

As shown in fig. 2 to 10, when the photoelectric sensor 5-6 detects that the head of the core material W reaches the traction unit D, the rotation speed sensor 5-7 immediately detects the rotation speed of the second transmission member 5-2, the moving size of the conveyor belt 5-1 can be converted to obtain the moving size of the core material W on the conveyor belt 5-1 due to the fit relationship between the conveyor belt 5-1 and the second transmission member 5-2, and when the moving size of the core material W on the conveyor belt 5-1 reaches a set size, for example, 5 meters, the controller C controls the cutting guide unit E to cut the core material W.

As shown in fig. 2 to 10, if the distance L is 400mm (the distance L is the distance between the cutting blade 4-8 and the photoelectric sensor 5-6) when the cutting guide unit E is located at the first position Q, the core W moves along with the pulling unit D, and the distance between the cutting blade 4-8 and the photoelectric sensor 5-6 is fixed under the cooperation of the photoelectric sensor 5-6 and the rotation speed sensor 5-7, the controller C determines that the core W has moved on the pulling unit D by 4.6 meters, and the distance between the cutting blade 4-8 and the photoelectric sensor 5-6 is fixed, and the core W is also present within the range of the distance L because the core is continuously conveyed, so that the distance of 4.6 meters plus 400mm reaches 5 meters of the cutting setting, and at this time, the controller C controls the cutting unit 2 to operate, the cutting blade holder 2-1-1 to move along the transverse direction of the first rail holder 1, and the moving speed of the cutting guide unit E is the same as the moving speed of the core W, so that there is no relative movement between the cutting guide unit E and the first sliding plate 4-1 to move along the longitudinal direction of the first rail holder 4-4, and the first sliding plate 4-4 to rotate the cutting blade holder to rotate the first cutting rail holder 4-8 to rotate the first cutting rail holder to rotate the first cutting blade holder to rotate the first cutting rail holder 4.

As shown in fig. 2 to 10, after the longitudinal driver 2-1-3 drives the cutting blade assembly to slide longitudinally along the first slide rail 2-1-2 and cut the core material W, for example, the cutting blade assembly slides along the first slide rail 2-1-2 from the left end to the right end (as viewed in fig. 8), the core material W is cut, after the core material W is cut, the cutting blade assembly moves to the first stop position and is kept at the first stop position, at this time, since the core material W which is continuously conveyed subsequently blocks the cutting blade assembly and does not reach the next cutting length, the cutting blade assembly is kept at the right end of the first slide rail 2-1-2, and after the next cutting length is reached, the cutting blade assembly starts to cut from the right end shown in fig. 8 and keeps still after the stop position of the left end is moved, and so on. The cutting guide unit E is returned to the first position Q as a whole after cutting is completed each time.

As shown in fig. 11 and 12, the slotting device is electrically connected with the controller C, and under the control of the controller C, slotting is performed by the slotting device to form a groove on the surface of a single core material W; in this embodiment, a full-automatic slotting device is used for slotting, as shown in fig. 11, a slot formed in the full-automatic slotting device penetrates through a core material W along a length direction or a width direction, and includes a workbench G, a moving frame H, a lifting slotting device I capable of moving along a longitudinal direction Z of the workbench G, a controller C, a first detection assembly J, a centering clamping mechanism K, and a start position detection assembly P, and each part and a relationship between each part are described in detail below:

as shown in fig. 11 and 12, the table G includes a table body 10, first guide rails 11, and a translation mechanism 12, the first guide rails 11 are disposed on both sides of the table body 10, the translation mechanism 12 is configured to drive the core material W to move in the lateral direction X of the table body 10, and the translation mechanism 12 is disposed on the table body 10 and electrically connected to the controller C.

Referring to fig. 11 and 12, in the present embodiment, the translation mechanism 12 preferably adopts a belt transmission mechanism, which includes a transmission belt flexibly engaged with two belt wheels respectively installed at two ends of the worktable body 10, a belt wheel including a reducer, an electric motor or a hydraulic motor, and a motor, an input end of the reducer is connected with an output end of the electric motor or the hydraulic motor, and an output end of the reducer is connected with one of the belt wheels. The workbench body 10 is provided with a first supporting plate 13, and the first supporting plate 13 is matched with the transmission belt to support the transmission belt. The width of the first support plate 13 is greater than the width of the belt in the translation mechanism 12, and therefore, a portion of the first support plate 13 is exposed to the outside of the belt.

As shown in fig. 11 and 12, the belt transmission mechanism adopted in the translation mechanism in the embodiment has an advantage that the first support plate 13 is supported by the transmission belt in the belt transmission mechanism, which is equivalent to that the first support plate 13 indirectly supports the core material W, so that the core material W obtains a uniform supporting force. Meanwhile, as the transmission belt in the belt transmission mechanism has the characteristic of rotating along the belt wheel, when the core material W is processed, the core material W can be directly unloaded through the belt transmission mechanism.

As shown in fig. 11 and 12, the moving frame H is in sliding fit with the first guide rail 11, the moving frame H is composed of a frame body 20, a belt transmission mechanism 21, a screw rod mechanism and a mounting seat, the frame body 20 is in sliding fit with the first guide rail 11, the belt transmission mechanism 21 is composed of a motor and a belt transmission assembly, the motor is fixed to the frame body 20, a driving pulley in the belt transmission assembly is connected to an output end of the motor, a driven pulley in the belt transmission assembly is connected to a nut in the screw rod mechanism, the driven pulley is rotatably mounted on the mounting seat, the mounting seat is fixed to the frame body 20, the belt is respectively matched with the driving pulley and the driven pulley, when the motor works, torque generated by the motor is transmitted to the nut in the screw rod mechanism through the belt transmission assembly, the nut rotates, and the nut sequentially drives the driven pulley, the mounting seat and the moving frame H to linearly move along a screw rod in the screw rod mechanism, so that the moving frame H moves along a transverse direction X of the workbench G.

As shown in fig. 11 and 13, the lifting slotting device I is engaged with the moving frame H, the moving frame H further includes a second guide rail 22 extending along the longitudinal direction Z of the working table G, the second guide rail 22 is fixed with the frame body 20, and the lifting slotting device I is slidably engaged with the second guide rail 22. The lifting slotting device I comprises a longitudinal driving mechanism (not shown in the figure), a sliding plate 23, a lifting driving part 24, a slotting driver 25 and a slotting cutter 26, wherein the longitudinal driving mechanism is arranged on the frame body 20 and can adopt an air cylinder, a hydraulic cylinder, an electric screw rod and the like, the longitudinal driving mechanism is connected with the sliding plate 23, the sliding plate 23 is in sliding fit with the second guide rail 22, the lifting driving part 24 is fixed with the sliding plate 23, the lifting driving part 24 can adopt an air cylinder, a hydraulic cylinder, an electric screw rod and the like, the slotting driver 25 is connected with the output end of the lifting driving part 24, the slotting driver 25 is a motor, the slotting driver 25 preferably adopts an electric motor, and the slotting cutter 26 is connected with the output end of the slotting driver 25.

As shown in fig. 11 to 13, when the longitudinal driving mechanism operates, the longitudinal driving mechanism drives the slide plate 23 to move in the longitudinal direction Z of the table G, and the elevation driving member 24, the grooving driver 25 and the grooving cutter 26 move with the slide plate 23 in the longitudinal direction Z of the table G. When the elevation driving part 24 is operated, the elevation driving part 24 drives the grooving driver 25 to move in the vertical direction Y of the table G, and the grooving tool 26 follows the grooving driver 25 to move in the vertical direction Y of the table G.

As shown in fig. 11 to 13, the controller C is electrically connected to the moving frame H and the lifting and grooving device I, in this embodiment, the controller C is composed of an upper computer and a programmable logic controller PLC electrically connected to the upper computer, an output end of the programmable logic controller PLC is electrically connected to a motor in the belt transmission mechanism 21, and an output end of the programmable logic controller PLC is electrically connected to the longitudinal driving mechanism, the lifting driving part 24, and the grooving driver 25.

As shown in fig. 11 to 13, the upper machine is configured to receive input processing data of the core material W, such as the length and width dimensions of the plate material, the depth of the slot, the spacing distance between two adjacent slots, and the like, and based on the input data, the programmable logic controller PLC may output a control command for moving the moving frame H in the transverse direction X of the table G (i.e., the moving dimension) and output a control command for moving the lifting and lowering slotting device I in the longitudinal direction Z and the vertical direction Y of the table G (i.e., the moving dimension).

The first detection assembly J is electrically connected to the controller C, and the first detection assembly J is configured to detect whether the core material W is loaded on the workbench G, for example, after the first detection assembly J detects that the core material W is loaded on the translation mechanism 12, the first detection assembly J feeds a detection signal back to the controller C, and the controller C sends a corresponding control signal to control the translation mechanism 12 and other parts to operate.

As shown in fig. 11 and 12, in the present embodiment, the first detection assembly J employs a photoelectric sensor or a gravity sensor, the photoelectric sensor is composed of a photoelectric emitter and a photoelectric receiver, and when the photoelectric sensor is employed, the photoelectric emitter and the photoelectric receiver are respectively mounted on the side portions of the translation mechanism 12, if a core material W is loaded on the translation mechanism 12, the core material W blocks light emitted by the photoelectric sensor, and the photoelectric receiver cannot receive a light signal, so that the controller C determines that the core material W is loaded on the translation mechanism 12.

As shown in fig. 11 and 12, when a gravity sensor is used, the gravity sensor is mounted on the first support plate 13 in the table G, and when a core material W is loaded on the translation mechanism 12, the gravity of the core material W is transmitted to the gravity sensor through the translation mechanism 12 to change an electric signal output from the gravity sensor, so that the controller C determines that the core material W is loaded on the translation mechanism 12.

As shown in fig. 11 to 13, the centering clamping mechanism K is electrically connected to the controller C, and after the first detection assembly J detects that the core material W is loaded on the translation mechanism 12, the controller C controls the centering clamping mechanism K to center and reset the core material W.

As shown in fig. 11 and 12, the initial position detecting assembly P is electrically connected to the controller C, the initial position detecting assembly P is disposed at a side portion of the translation mechanism 12, the initial position detecting assembly P preferably employs a photoelectric sensor, and the photoelectric sensor has the same working principle as the photoelectric sensor employed by the first detecting assembly J, and is not described herein again.

As shown in fig. 11 to 13, the home position detection unit P is engaged with the translation mechanism 12, and when the end portion of the core material W driven by the translation mechanism 12 reaches the detection position of the home position detection unit P, the controller C controls the translation mechanism 12 to stop operating, and controls the center clamping mechanism K to clamp the core material W.

As shown in fig. 11 to 13, in the present embodiment, the initial grooving position is set, and the lifting grooving device I can only work to groove the core material W after the head of the core material W reaches the initial grooving position. When the core material W is loaded on the translation mechanism 12, the position of the core material W falling on the translation mechanism 12 may be different every time, so that after the core material W is centered by the centering clamping mechanism K, the centering clamping mechanism K is reset to loosen the clamping of the core material W, and then when the end of the core material W driven by the translation mechanism 12 reaches the detection position of the initial position detection assembly P, the translation mechanism 12 stops working at the moment, which indicates that the end of the core material W reaches the initial grooving position. Therefore, the core material W is automatically brought to the starting grooving position by the starting position detecting unit P, the translation mechanism 12, and the controller C. This embodiment can promote the positioning accuracy of core W from this, does benefit to the precision of guarantee fluting.

As shown in fig. 11 to 13, the centering clamping mechanism K is mounted on the first support plate 13, and is mounted on both opposite sides of the translation mechanism 12, and is used for limiting the swing of the core material W when the core material W is stressed. The clamping mechanism K is composed of an air cylinder and a clamping plate connected with the output end of the air cylinder.

As shown in fig. 14 to 15, the core material W and the glass fiber cloth are pinch-fed by a pinch cloth sticking device, the pinch cloth sticking device heats the glass fiber cloth stacked on the core material W to melt the adhesive solidified on the glass fiber cloth, the glass fiber cloth is bonded and fixed with the core material W through the melted adhesive, and the pinch cloth sticking device heats the glass fiber cloth and simultaneously generates a leveling acting force on the bonded glass fiber cloth.

As shown in fig. 14 to 15, the pinch cloth-sticking apparatus includes a frame 41, a first pinch roller 42, a second pinch roller 43, a heating member 44, a pinch driver 45, a first guide frame 46, a second guide frame 47, and a discharge frame 48, wherein the first pinch roller 42 is pivotally connected to the frame 41, the second pinch roller 43 cooperates with the first pinch roller 42 to apply a pinch force to the core material W and the glass fiber cloth, the second pinch roller 43 is pivotally connected to the frame 41, a pinch passage for the core material W and the glass fiber cloth to pass through is provided between the second pinch roller 43 and the first pinch roller 42, and the heating member 44 is connected to the first pinch roller 42 or the second pinch roller 43. In this embodiment, the heating member 44 outputs circulating hot oil, an oil cavity is provided in the first pinch roll 42, and the shaft heads at both ends of the first pinch roll 42 are hollow shafts connected to the heating member 44. The pinch drive 45 (motor) is connected to the first pinch roll 42 or the second pinch roll 43, and the pinch drive 45 is preferably connected to the second pinch roll 43 through a speed reducer. A first guide carriage 46 is connected to the frame 41 and is located upstream of the pinch pass, and a second guide carriage 47 is connected to the frame 41 and is located downstream of the pinch pass. The discharging frame 48 is used for supporting the glass fiber cloth, and the discharging frame 48 is installed on the frame 41.

Preferably, the pinch and cloth pasting device further comprises a swing oil cylinder 49, the second guide frame 47 is hinged with the rack 41, one end of the swing oil cylinder 49 is connected with the rack 41, and the other end of the swing oil cylinder 49 is hinged with the second guide frame 47.

Preferably, the pinch roll sticking device further comprises a pinch roll lifting driver 50, the pinch roll lifting driver 50 is installed on the frame 41, the frame 41 is composed of a fixed frame 41a and a movable frame 41b, the movable frame 41b is in sliding fit with the fixed frame 41a, the pinch roll lifting driver 50 is fixedly connected with the movable frame 41b, and the first pinch roll 42 is in pivot connection with the movable frame 41 b. When the height of the pinch channel needs to be adjusted, the pinch roll lifting driver 50 drives the movable frame 41b to lift or descend, so that the first pinch roll 42 is lifted or descended, the distance between the first pinch roll 42 and the second pinch roll 43 is changed, and the height of the pinch channel is changed.

As shown in fig. 14 to 15, when the pinch cloth-sticking apparatus is operated, the hot oil output from the heating member 44 enters the oil cavity inside the first pinch roller 42 to heat the first pinch roller 42, the core material W is moved along the first guide frame 46 when the temperature of the outer peripheral surface of the first pinch roller 42 reaches a predetermined temperature, for example, 160 ℃, the rolled glass cloth is discharged from the discharge frame 48, the side of the glass cloth having the adhesive is engaged with the cloth-sticking surface of the core material W, the glass cloth and the core material W reach the inlet side of the pinch passage together, the glass cloth and the core material W are clamped and conveyed by the first pinch roller 42 and the second pinch roller 43 (driven roller) under the force generated by the first pinch roller 42, during which the glass cloth is heated by the first pinch roller 42 to melt the solidified adhesive, the glass cloth is bonded and fixed to the core material W by the melted adhesive, and the first pinch roller 42 and the second pinch roller 43 generate a leveling force to the bonded glass cloth, and the glass cloth becomes a flat core material after the bonding is completed. After the cloth sticking of the whole board core material W is finished, the swing oil cylinder 49 drives the second guide frame 47 to rotate, so that the second guide frame 47 is changed from a horizontal state to an inclined state, the core material W after cloth sticking is in an inclined state, and the unloading operation of the core material W is facilitated.

As shown in fig. 1 to 15, the method for preparing the wind turbine blade web core material by using the automatic manufacturing system comprises the following steps:

s1, extruding and molding a PVC or PET material into a continuous plate-shaped core material by using a plate extruder A.

And S2, conveying and cutting the continuous plate-shaped core material under the control of a controller C through conveying equipment to obtain a single core material W.

And S3, under the control of the controller C, slotting by using slotting equipment to open a groove on the surface of the single core material W.

And S4, after the groove is formed in the core material W, sending the core material W and the glass fiber cloth which are overlapped together into an input end of a clamping and conveying cloth pasting device, conveying the glass fiber cloth and the core material W by the clamping and conveying cloth pasting device, wherein one matched surface of the glass fiber cloth and the core material W is provided with solidified viscose, heating the glass fiber cloth by the clamping and conveying cloth pasting device in a clamping and conveying process of the glass fiber cloth by the clamping and conveying cloth pasting device, melting the solidified viscose, bonding and fixing the glass fiber cloth with the core material W through the melted viscose, and simultaneously generating leveling acting force on the attached glass fiber cloth by the clamping and conveying cloth pasting device while heating the glass fiber cloth.

Preferably, before the fiberglass cloth is heated and bonded to the core material W, the method further comprises the step of inspecting the fiberglass cloth and the core material W, wherein the step of inspecting the type of the fiberglass cloth, inspecting whether the adhesive surface of the fiberglass cloth faces the surface of the core material W, and inspecting whether the thickness of the fiberglass cloth is matched with that of the core material W.

Preferably, before the glass fiber cloth and the core material W are heated and pasted, the method further comprises the step of heating the clamping and conveying cloth pasting device, the clamping and conveying cloth pasting device is started to rotate in the heating process, a thermodetector is used for measuring whether the part, heated by the glass fiber cloth, of the clamping and conveying cloth pasting device reaches a set value, the distance between the thermodetector and the heating part of the clamping and conveying cloth pasting device is 10-20cm, the distance preferably adopts 15cm, and at least three points of the heating part of the clamping and conveying cloth pasting device are detected.

Preferably, before the fiberglass cloth and the core material W are heated and adhered, the method further comprises the step of removing impurities from the clamping and conveying cloth sticking equipment by using a removing tool, wherein the impurities are removed after the clamping and conveying cloth sticking equipment is heated. For example, a blade is used to clean debris.

Preferably, after the temperature of the pinch cloth pasting equipment is raised to 150-170 ℃ and maintained in the temperature range, the glass fiber cloth and the core material W are sent to the input end of the pinch cloth pasting equipment.

Preferably, the pinch speed of the pinch cloth sticking device to the core material W and the glass fiber cloth is less than 5 meters per minute, for example, 4 meters per minute.

Claims

1. An automated wind turbine blade web core manufacturing system comprising:

a sheet extruder (A) for extruding and molding a PVC or PET material into a continuous sheet-like core material;

the continuous plate-shaped core material is conveyed and cut by the conveying equipment under the control of the controller (C) to obtain a single core material (W);

the controller (C) is electrically connected with the conveying equipment;

the slotting equipment is electrically connected with the controller (C), and under the control of the controller (C), slotting is carried out by adopting the slotting equipment to open a groove on the surface of the single core material (W);

the device is characterized by further comprising a clamping and cloth-sticking device for clamping and sending the core material (W) and the glass fiber cloth, wherein the clamping and cloth-sticking device heats the glass fiber cloth superposed on the core material (W) to melt the viscose solidified on the glass fiber cloth, the glass fiber cloth is fixedly bonded with the core material (W) through the melted viscose, and the clamping and cloth-sticking device heats the glass fiber cloth and simultaneously generates leveling acting force on the jointed glass fiber cloth.

2. The automated wind turbine blade web core manufacturing system of claim 1, wherein the pinch and taping apparatus comprises: a frame (41);

the first pinch roll (42), the first pinch roll (42) is connected with the frame (41) through a pivot;

the second pinch roll (43) is matched with the first pinch roll (42) to apply pinch acting force to the core material (W) and the glass fiber cloth, the second pinch roll (43) is in pivot connection with the rack (41), and a pinch channel for the core material (W) and the glass fiber cloth to pass through is arranged between the second pinch roll (43) and the first pinch roll (42);

a heating member (44), wherein the heating member (44) is connected with the first pinch roll (42) or the second pinch roll (43);

the pinch driver (45), the pinch driver (45) is connected with the first pinch roll (42) or the second pinch roll (43);

a first guide frame (46), the first guide frame (46) is connected with the rack (41) and is positioned at the upstream of the clamping and conveying channel;

the second guide frame (47), the second guide frame (47) is connected with the frame (41) and is positioned at the downstream of the clamping and conveying channel;

the discharging frame (48) is used for supporting the glass fiber cloth, and the discharging frame (48) is installed on the rack (41).

3. The automatic manufacturing system of the wind driven generator blade web core material is characterized in that the clamping and delivering cloth pasting device further comprises a swinging oil cylinder (49), the second guide frame (47) is hinged with the frame (41), one end of the swinging oil cylinder (49) is connected with the frame (41), and the other end of the swinging oil cylinder (49) is hinged with the second guide frame (47).

4. The automated wind turbine blade web core manufacturing system of claim 1, wherein the transport apparatus comprises:

a conveying unit (B) for receiving and conveying the core material (W), wherein the conveying unit (B) is electrically connected with the controller (C);

the traction unit (D) is electrically connected with the controller (C) and is used for drawing the core material (W) to enable the core material (W) to be in a tensioning state;

the cutting guide unit (E) is positioned between the conveying unit (B) and the traction unit (D), the cutting guide unit (E) is electrically connected with the controller (C), the head of the core material (W) penetrates through the cutting guide unit (E) and reaches the traction unit (D), or the controller (C) controls the cutting guide unit (E) to move from the initial position at a first speed, after the head of the core material (W) matched with the cutting guide unit (E) is guided to the traction unit (D), the controller (C) controls the cutting guide unit (E) to move at a second speed, the cutting guide unit (E) cuts the core material (W) which is in a tensioning state and is formed by the traction unit (D) when moving, and the second moving speed is the same as the speed of the traction unit (D) for traction of the core material (W).

5. The preparation method of the wind driven generator blade web core material is characterized by comprising the following steps:

s1, extruding and molding a PVC or PET material into a continuous plate-shaped core material by using a plate extruder (A);

s2, conveying and cutting the continuous plate-shaped core material under the control of a controller (C) through conveying equipment to obtain a single core material (W);

s3, under the control of the controller (C), slotting by using slotting equipment to open a groove on the surface of the single core material (W);

and S4, after the groove is formed in the core material W, sending the core material W and the glass fiber cloth which are overlapped together into an input end of a clamping and conveying cloth pasting device, and conveying the glass fiber cloth and the core material W by the clamping and conveying cloth pasting device, wherein one surface, matched with the core material W, of the glass fiber cloth has solidified viscose, the clamping and conveying cloth pasting device heats the glass fiber cloth in the clamping and conveying process of the glass fiber cloth, the solidified viscose is melted, the glass fiber cloth is fixedly bonded with the core material W through the melted viscose, and the clamping and conveying cloth pasting device heats the glass fiber cloth and simultaneously generates leveling acting force on the bonded glass fiber cloth.

6. The method for manufacturing the web core material of the wind turbine blade as claimed in claim 5, wherein before the step of heating and adhering the glass fiber cloth to the core material (W), the step of inspecting the glass fiber cloth and the core material (W) comprises inspecting the type of the glass fiber cloth, inspecting whether the adhesive surface of the glass fiber cloth faces the surface of the core material (W), and inspecting whether the thickness of the glass fiber cloth is matched with that of the core material (W).

7. The method for preparing the web core material of the wind driven generator blade according to claim 5, wherein before the glass fiber cloth and the core material (W) are heated and adhered, the method further comprises a step of heating the clamping and feeding cloth-adhering device, wherein the clamping and feeding cloth-adhering device is started to rotate in the heating process, a thermometer is used for measuring whether the part of the clamping and feeding cloth-adhering device, which is used for heating the glass fiber cloth, reaches a set value, the distance between the thermometer and the heating part of the clamping and feeding cloth-adhering device is 10-20cm, and at least three points of the heating part of the clamping and feeding cloth-adhering device are detected.

8. The method for preparing the wind driven generator blade web core material as claimed in claim 7, wherein before the glass fiber cloth and the core material (W) are heated and adhered, a step of removing impurities from a clamping and conveying cloth sticking device by using a removing tool is further included, and the removing of the impurities is performed after the clamping and conveying cloth sticking device is heated.

9. The method for preparing the web core material of the wind driven generator blade as claimed in claim 7, wherein the glass fiber cloth and the core material (W) are sent to the input end of the pinch cloth pasting device after the temperature of the pinch cloth pasting device is raised to 150-170 ℃ and maintained in the temperature range.

10. The method for preparing the web core material of the wind driven generator blade as claimed in claim 5, wherein the pinch speed of the pinch cloth sticking device to the core material (W) and the glass fiber cloth is less than 5 meters per minute.